Install from ppa:jonathonf/ffmpeg4 403 Forbidden [IP: 91.189.95.83 80]
The ppa:jonathonf/ffmpeg4 has been removed.
See https://launchpad.net/~jonathonf/+archive/ubuntu/ffmpeg-4
This PPA has been removed from public access as part of a protest against the abuse of open-source projects by large companies. For more detail visit the main page here: https://launchpad.net/~jonathonf